Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -768,3 +768,5 @@
 {"step": 15360, "tokens": 8053063680, "loss": 2.7797285079956056, "tokens_per_second": 990793.6321202533, "lr": 0.0015, "gradient_norm": 0.12407135218381882, "benchmark": false}
 {"step": 15380, "tokens": 8063549440, "loss": 2.764774703979492, "tokens_per_second": 960681.4674944137, "lr": 0.0015, "gradient_norm": 0.11804969608783722, "benchmark": false}
 {"step": 15400, "tokens": 8074035200, "loss": 2.770212745666504, "tokens_per_second": 793080.9519841595, "lr": 0.0015, "gradient_norm": 0.12192878127098083, "benchmark": false}
+{"step": 15420, "tokens": 8084520960, "loss": 2.782291221618652, "tokens_per_second": 990637.1932859971, "lr": 0.0015, "gradient_norm": 0.12279947847127914, "benchmark": false}
+{"step": 15440, "tokens": 8095006720, "loss": 2.779428482055664, "tokens_per_second": 985431.1509096528, "lr": 0.0015, "gradient_norm": 0.11921844631433487, "benchmark": false}